Fractional Order PID Controller Based on Particle Swarm Optimization Implemented with FPGA

According to parameters adjustment problems of fractional order PID controller applied in time-varying???nonlinear???real-time demanding higher systems, an improved particle swarm optimization (PSO) algorithm is adopted to optimize fractional order PID controller parameters. Because of high complexity of PSO and long tuning time, the paper adopts FPGA and combined with external circuit to implement fractional order PID controller. The results show that the improved PSO improves the parameters precision of the fractional order PID controller and adaptive capacity of control systems, and the real-time of systems is well met.

[1]  Igor Podlubny,et al.  Fractional-order systems and PI/sup /spl lambda//D/sup /spl mu//-controllers , 1999 .

[2]  I. Podlubny.  Fractional-order systems and PIλDμ-controllers , 1999, IEEE Trans. Autom. Control..

[3]  J. G. Khor,et al.  FPGA fuzzy logic controller for variable speed generators , 2001, Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204).

[4]  Antonio Torralba,et al.  The architecture of an FPGA-style programmable fuzzy logic controller chip , 2000, Proceedings 5th Australasian Computer Architecture Conference. ACAC 2000 (Cat. No.PR00512).

[5]  Lov K. Grover.  A fast quantum mechanical algorithm for database search , 1996, STOC '96.

[6]  Y. Chen,et al.  A comparative introduction of four fractional order controllers , 2002, Proceedings of the 4th World Congress on Intelligent Control and Automation (Cat. No.02EX527).

[7]  Carthik A. Sharma,et al.  A combinatorial group testing method for FPGA fault location , 2006, ACST.